Socket server - What are the characteristics of backend interfaces written using PHP's swoole extension and backends written in other languages?

For example, what is the difference in efficiency, convenience, etc.?
In addition to Zhanqi TV and Huya Live as mentioned on the official website, what other large businesses are currently using swoole?
Also, what are the characteristics of the swoole framework compared with other mvc frameworks?

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For example, what is the difference in efficiency, convenience, etc.?
In addition to Zhanqi TV and Huya Live as mentioned on the official website, what other large businesses are currently using swoole?
Also, what are the characteristics of the swoole framework compared with other mvc frameworks?

Swoole is a network communication engine that provides a high-performance framework for asynchronous multi-threaded services in PHP language (written in pure C)
Someone said Before swoole is started, swoole is an extension of PHP and a framework. swoole starts After that, php is part of swoole (summarizing the essence of swoole)
Nowadays, some domestic mobile and web game servers and some live broadcast platforms use swoole. General business scenarios do not use swoole